Touch display panel and display device

Abstract

The present invention provides a touch display panel comprising a touch driving electrode and a touch sensing electrode, wherein the touch display panel further comprises a signal enhancement layer which is capable of generating electric field lines by coupling with the touch driving electrode and/or the touch sensing electrode. The present invention also provides a display device including the above touch display panel. When the operator's finger touches the surface of the touch display panel, a large amount of electric field lines generated by coupling of the signal enhancement layer are attracted to the operator's finger, thereby increasing the amount of change in capacitance, and the sensitivity of the touch display panel is further improved.

The invention claimed is: 
     
       1. A touch display panel, comprising a touch driving electrode and a touch sensing electrode, wherein the touch display panel further comprises
 a signal enhancement layer which is capable of generating electric field lines by coupling with the touch driving electrode and/or the touch sensing electrode; and 
 an array substrate and an upper substrate opposed to the array substrate, the touch driving electrode is disposed on the array substrate, the touch sensing electrode is disposed on a surface of the upper substrate facing towards the array substrate, the signal enhancement layer is disposed on the surface of the upper substrate facing away from the array substrate, wherein the projection of the signal enhancement layer on the array substrate does not overlap the touch driving electrode, and the projection of the signal enhancement layer on the upper substrate does not overlap the touch sensing electrode. 
 
     
     
       2. The touch display panel according to  claim 1 , wherein the signal enhancement layer includes horizontal lines and vertical lines which are mutually intersected. 
     
     
       3. The touch display panel according to  claim 2 , wherein the signal enhancement layer is disposed in the regions corresponding to the black matrix of the touch display panel. 
     
     
       4. The touch display panel according to  claim 1 , wherein the signal enhancement layer comprises a plurality of rectangular frames. 
     
     
       5. The touch display panel according to  claim 1 , wherein the signal enhancement layer is made of indium tin oxide material. 
     
     
       6. The touch display panel according to  claim 3 , wherein the signal enhancement layer is made of indium tin oxide material. 
     
     
       7. The touch display panel according to  claim 3 , wherein the signal enhancement layer is made of metal material. 
     
     
       8. A display device including a touch display panel comprising a touch driving electrode and a touch sensing electrode, wherein the touch display panel further comprises
 a signal enhancement layer which is capable of generating electric field lines by coupling with the touch driving electrode and/or the touch sensing electrode; and 
 an array substrate and an upper substrate opposed to the array substrate, the touch driving electrode is disposed on the array substrate, the touch sensing electrode is disposed on a surface of the upper substrate facing towards the array substrate, the signal enhancement layer is disposed on the surface of the upper substrate facing away from the array substrate, wherein the projection of the signal enhancement layer on the array substrate does not overlap the touch driving electrode, and the projection of the signal enhancement layer on the upper substrate does not overlap the touch sensing electrode. 
 
     
     
       9. The display device according to  claim 8 , wherein the signal enhancement layer includes horizontal lines and vertical lines which are mutually intersected. 
     
     
       10. The display device according to  claim 9 , wherein the signal enhancement layer is disposed in the regions corresponding to the black matrix of the touch display panel. 
     
     
       11. The display device according to  claim 8 , wherein the signal enhancement layer comprises a plurality of rectangular frames. 
     
     
       12. The display device according to  claim 8 , wherein the signal enhancement layer is made of indium tin oxide material.